Monoprice Maker Select Plus ...

Let's start with the essential upgrades (amazon links provided)

• Gulfcoast Robotics Y Carriage Plate Upgrade for Maker Select and Wanhao Duplicator I3 3D Printers  $23

  https://www.amazon.com/gp/product/B07B251KBS/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

  The Y carriage plate that comes with your printer is thin rolled aluminum.  Because of that it will warp.  The replacement certainly won't.

• Gulfcoast Robotics Borosilicate Glass for Wanhao Duplicator i3 Anet A8 MP maker Select 3d Printers, 4mm Thick
  Let's face it, unless you like pealing the Plate off every so often, you want something that will fit your printer and last for a long time this does both
  https://www.amazon.com/gp/product/B07B2YLWF9/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
   

• Silicone Thermal Pad for GPU Heatsink
  This is going to go between the bed on the printer and the glass plate above.  Cut it into 2 inch squares and arrange them evenly about your bed before putting the glass plate on.
  https://www.amazon.com/gp/product/B007PPEW52/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

• You'll want improved cooling. So this will likely be an early print.
  https://www.thingiverse.com/thing:1025471
  And you'll need a fan:  https://www.amazon.com/gp/product/B079BPS9Q8/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1
   

• You'll want to remove the spring tensioners on the X and Y belts and tighten them up without any
   

Optional upgrades:

• After you wreck a PTFE tube or two printing and get sick of replacing them, you'll want the all-metal hot end by Micro Swiss
  https://www.amazon.com/gp/product/B01E1HANLS/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
• While you're there you might want to install a replacement extruder plate and level
  https://www.amazon.com/gp/product/B06WVB6CYD/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
• You'll also probably wreck the Kafton tape around the hotend, so you might as well install this while you're there
  https://www.amazon.com/gp/product/B079K8NWM4/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
• You might also want to replace the Extruder gears with better ones.
  https://www.amazon.com/gp/product/B06ZYG5Z47/ref=oh_aui_detailpage_o08_s01?ie=UTF8&psc=1
   

ADVI3++ is an optional firmware upgrade.

• https://github.com/andrivet/ADVi3pp-User-Manual
• LCD Enclosure instructions: https://www.thingiverse.com/thing:236932
• LCD Enclosure specific for the MMSP: https://www.thingiverse.com/thing:2758687
• You'll also need an 8GB MicroSD card: https://www.amazon.com/gp/product/B00200K1TS/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1